Take a look at http://download.savannah.gnu.org/releases/lout/lout-3.40-user.ps.gz http://download.savannah.gnu.org/releases/lout/lout-3.40-use... (page 148 and

Take a look at http://download.savannah.gnu.org/releases/lout/lout-3.40-user.ps.gz http://download.savannah.gnu.org/releases/lout/lout-3.40-use... (page 148 and followings).